Turn device ports into reference counted objects

Since both cards and sinks can hold references to a port, it makes
sense to reference count them. Although no current implementation
actually has sinks with ports but without a card, it felt wrong
to make it harder to make such an implementation in the future.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2011-11-25 15:17:12 +01:00 committed by Tanu Kaskinen
parent 961ec210a6
commit d9685ec85d
7 changed files with 138 additions and 69 deletions

View file

@ -0,0 +1,66 @@
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
Copyright 2011 David Henningsson, Canonical Ltd.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include "device-port.h"
PA_DEFINE_PUBLIC_CLASS(pa_device_port, pa_object);
static void device_port_free(pa_object *o) {
pa_device_port *p = PA_DEVICE_PORT(o);
pa_assert(p);
pa_assert(pa_device_port_refcnt(p) == 0);
pa_xfree(p->name);
pa_xfree(p->description);
pa_xfree(p);
}
pa_device_port *pa_device_port_new(const char *name, const char *description, size_t extra) {
pa_device_port *p;
pa_assert(name);
p = PA_DEVICE_PORT(pa_object_new_internal(PA_ALIGN(sizeof(pa_device_port)) + extra, pa_device_port_type_id, pa_device_port_check_type));
p->parent.free = device_port_free;
p->name = pa_xstrdup(name);
p->description = pa_xstrdup(description);
p->priority = 0;
p->available = PA_PORT_AVAILABLE_UNKNOWN;
return p;
}
void pa_device_port_hashmap_free(pa_hashmap *h) {
pa_device_port *p;
pa_assert(h);
while ((p = pa_hashmap_steal_first(h)))
pa_device_port_unref(p);
pa_hashmap_free(h, NULL, NULL);
}